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Finding the Fourth Proportional to 478,932.30, 717,793.65 and 242,340.30

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Solution

The fourth proportional to 478,932.30, 717,793.65 and 242,340.30 is: 363,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,932.30 : 717,793.65 = 242,340.30 : x
  2. Step 2: Convert to fraction form
    478,932.30/717,793.65 = 242,340.30/x
  3. Step 3: Cross multiply
    478,932.30x = 717,793.65 × 242,340.30
  4. Step 4: Simplify right side
    478,932.30x = 173,950,328,479.10
  5. Step 5: Solve for x
    x = 173,950,328,479.10/478,932.30
  6. Step 6: Final answer
    x = 363,204.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.